Abstract: By means of ISSR, this paper analyzed the molecular genetic variation of four Dendrolimus spectabilis populations collected from Taian (Culai Mountain), Qingdao (Jiaonan), Chaoyang (Lingyuan), and Huludao (Suizhong). Among the four D. spectabilis populations, the Huludao population had a higher genetic diversity. There existed definite genetic differentiation among the populations. Correlation analysis showed that the D. spectabilis populations genetic diversity was negatively correlated with elevation, positively correlated with mean annual air temperature and humidity, but less correlated with latitude. Besides, the genetic distance between the pairs of the populations was positively correlated with elevation distance.

Key words: Low temperature stress, Garcinia hanburyi, Growing irradiances, Fluorescence characteristics, Active oxygen metabolism